Use After Free Affecting firefox package, versions <0:68.2.0-2.0.1.el8_0


Severity

Recommended
critical

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.78% (82nd percentile)

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  • Snyk IDSNYK-ORACLE8-FIREFOX-2539458
  • published10 Apr 2022
  • disclosed8 Jan 2020

Introduced: 8 Jan 2020

CVE-2019-11757  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Oracle:8 firefox to version 0:68.2.0-2.0.1.el8_0 or higher.
This issue was patched in ELSA-2019-3196.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox package and not the firefox package as distributed by Oracle. See How to fix? for Oracle:8 relevant fixed versions and status.

When following the value's prototype chain, it was possible to retain a reference to a locale, delete it, and subsequently reference it. This resulted in a use-after-free and a potentially exploitable crash. This vulnerability affects Firefox < 70, Thunderbird < 68.2, and Firefox ESR < 68.2.

CVSS Scores

version 3.1